Browsing Natural and Agricultural Sciences by Supervisor "Sauer, N. (Niko)"

Browsing Natural and Agricultural Sciences by Supervisor "Sauer, N. (Niko)"

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  • An algebraic - analytic framework for the study of intertwined families of evolution operators 
    Lee, Wha-Suck (University of Pretoria, 2015)
    We introduce a new framework of generalized operators to handle vector valued distributions, intertwined evolution operators of B-evolution equations and Fokker Planck type evolution equations. Generalized operators capture ...
  • Flow of second-grade fluids in regions with permeable boundaries 
    Maritz, Riette (University of Pretoria, 2007-02-23)
    The equation of motion for the flows of incompressible Newtonian fluids (Navier Stokes equations) under no-slip boundary conditions have been studied deeply from many perspectives. The questions of existence and uniqueness ...
  • 'n Algoritme vir kleinstekwarate-benadering 
    Schaafsm, August (University of Pretoria, 1977)
    Die doel van hierdie verhandeling is om 'n algoritme vir kleinstekwadrate-benaderings te vind en om met behulp van die algoritme 'n rekenaarprogram te ontwikkel vir die minimering van die kleinstekwadrate- benadering ...
  • Nonlinear Acoustics : what happens when the constraint is challenged? 
    Dziwa, Simbarashe Kudzai (University of Pretoria, 2017)
    The Lagrangian formulation for the propagation of sonic disturbances consists of a system of rst order partial di erential equations and an inequality constraint under which the system is hyperbolic. We study the behaviour ...
  • Solid-gas in nonlinear acoustics 
    Nene, Mduduzi Bethuel (University of Pretoria, 2013)
    This dissertation is concerned with aspects of the newly-proposed approach to nonlinear acoustics in which the Lagrangian description of gas motion is followed. It contains a systematic survey of the approach which leads ...
  • The theory of integrated empathies 
    Brown, Thomas John (University of Pretoria, 2007-08-24)
    Abstract available on page 4 of the document